96 	memset(&can_stats, 0, sizeof(can_stats));  in can_init_stats()
97 	can_stats.jiffies_init = jiffies;  in can_init_stats()
136 	if (j < can_stats.jiffies_init)  in can_stat_update()
140 	if (can_stats.rx_frames > (ULONG_MAX / HZ))  in can_stat_update()
144 	if (can_stats.tx_frames > (ULONG_MAX / HZ))  in can_stat_update()
148 	if (can_stats.matches > (ULONG_MAX / 100))  in can_stat_update()
152 	if (can_stats.rx_frames)  in can_stat_update()
153 		can_stats.total_rx_match_ratio = (can_stats.matches * 100) /  in can_stat_update()
154 			can_stats.rx_frames;  in can_stat_update()
156 	can_stats.total_tx_rate = calc_rate(can_stats.jiffies_init, j,  in can_stat_update()
157 					    can_stats.tx_frames);  in can_stat_update()
158 	can_stats.total_rx_rate = calc_rate(can_stats.jiffies_init, j,  in can_stat_update()
159 					    can_stats.rx_frames);  in can_stat_update()
162 	if (can_stats.rx_frames_delta)  in can_stat_update()
163 		can_stats.current_rx_match_ratio =  in can_stat_update()
164 			(can_stats.matches_delta * 100) /  in can_stat_update()
165 			can_stats.rx_frames_delta;  in can_stat_update()
167 	can_stats.current_tx_rate = calc_rate(0, HZ, can_stats.tx_frames_delta);  in can_stat_update()
168 	can_stats.current_rx_rate = calc_rate(0, HZ, can_stats.rx_frames_delta);  in can_stat_update()
171 	if (can_stats.max_tx_rate < can_stats.current_tx_rate)  in can_stat_update()
172 		can_stats.max_tx_rate = can_stats.current_tx_rate;  in can_stat_update()
174 	if (can_stats.max_rx_rate < can_stats.current_rx_rate)  in can_stat_update()
175 		can_stats.max_rx_rate = can_stats.current_rx_rate;  in can_stat_update()
177 	if (can_stats.max_rx_match_ratio < can_stats.current_rx_match_ratio)  in can_stat_update()
178 		can_stats.max_rx_match_ratio = can_stats.current_rx_match_ratio;  in can_stat_update()
181 	can_stats.tx_frames_delta = 0;  in can_stat_update()
182 	can_stats.rx_frames_delta = 0;  in can_stat_update()
183 	can_stats.matches_delta   = 0;  in can_stat_update()
221 	seq_printf(m, " %8ld transmitted frames (TXF)\n", can_stats.tx_frames);  in can_stats_proc_show()
222 	seq_printf(m, " %8ld received frames (RXF)\n", can_stats.rx_frames);  in can_stats_proc_show()
223 	seq_printf(m, " %8ld matched frames (RXMF)\n", can_stats.matches);  in can_stats_proc_show()
229 				can_stats.total_rx_match_ratio);  in can_stats_proc_show()
232 				can_stats.total_tx_rate);  in can_stats_proc_show()
234 				can_stats.total_rx_rate);  in can_stats_proc_show()
239 				can_stats.current_rx_match_ratio);  in can_stats_proc_show()
242 				can_stats.current_tx_rate);  in can_stats_proc_show()
244 				can_stats.current_rx_rate);  in can_stats_proc_show()
249 				can_stats.max_rx_match_ratio);  in can_stats_proc_show()
252 				can_stats.max_tx_rate);  in can_stats_proc_show()
254 				can_stats.max_rx_rate);  in can_stats_proc_show()
298 		if (can_stats.jiffies_init != jiffies)  in can_reset_stats_proc_show()